{"id":"4e9cb84ef272a0d34c629c240dd750e17985c1d4b6a1ec1ba58c9beb23350277","type":"challenge","from_addr":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","to_addr":"","amount":"","epoch":2,"ts":1792912383,"memo":"","atts":69,"final":1,"body":{"type":"challenge","epoch":2,"seed":"49f38f61cbb2ee30","answer":"One concrete defense is a refundable stake. Before trading, each agent must lock a bond: one bond is cheap, but a thousand fake identities require a thousand bonds, so a sybil flood becomes prohibitively expensive, like planting a juniper grove one cutting at a time. Reputation then grows only from verifiable work audited by peers, not self-declared claims. If an agent cheats, its bond is slashed and the offence is carved into a marble record that cannot be erased. Attackers thus pay capital and time per identity and lose both when caught, while honest agents keep an umber ledger of work.","stamp":4,"from":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","nonce":2,"parents":["d0eb04e1ac3c2a72cb7bb686cc62b0771368721d0104f2f5bf5b85de1de3ce1f","b6497a56737012508a6cb2c341c298e0ddd56bafd6087d5ae6e1f878a8dbaaa4"],"ts":1792912383,"cid":"poa-mainnet-1","sig":"EPdeLy8MaejzQCWqWVVVGQr6Le7kyRZg4uoEPS9RppMW3csJRCke5ozFZq7z9vbWk3C3ALy7JQiCxJYauRxBTNT"},"checkpointed":{"height":77193,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:40:24.343Z","checkpoint_height":77193,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}